| Term | Definition |
|---|---|
| D-Day |
The first day of the Allied invasion of Normandy - June 6th 1944 - D stands for "Day"
|
| Demon |
Operational code name for the British evacuation of Greece in April 1941
|
| Diadem |
Operational code name for Allied offensive in Italy towards Rome in 1944
|
| Division |
A basic army formation made up of between 12,000 and 18,000 men
|
| Domino |
British equipment used to counter the German Y-Beam (Y-Gerat) bombing system
|
| Downfall |
Operational code name for the planned Allied assault on Japan in 1945
|
| Dragoon |
Operational code name for Allied operations in the South of France formerly known as Anvil
|
| DUKW |
An amphibious truck used by the Allies. D=1942 (design date); U=Utility Vehicle; K=All Wheel Drive; W=2 powered rear axles
|
| Dynamo |
Operational code name for the British evacuation of Dunkirk in May/June 1940
|